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(No Model.) W. HAWDON.

APPARATUS POR REMOVING- SLAG PROM PURNAGES.

No. 447,683. Patented Mar. 3, 18,91.

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UNITED STATES PATENT QEEICE.

IVILLIAM IIAVDON, OF MIDDLESBROUGII-ON-TEES, ENGLAND.

APPARATUS FOR REMOVING SLAG FROM FURNACES.

SPECIFICATION forming part 0f Letters Patent No. 447,683, dated March 3, 1891.

Application filed November 5, 1888. Serial No. 290.037. (No model.) Patented in England October 3l, 1887, No. 14,803, and in Belgium November 5,1888, No. 88,846.

To @ZZ whom, it may concern.-

Be it known that 1, WILLIAM HAwDoN, engineer, a subject of the Queen yof Great Britain, residing at the Newlan ds, Middlesbroughon-Tees, in the county of York, England, have invented new and useful Improvements in Apparatus for Removing Slag from Furnaces, (for which I have obtained a patent in Great Britain, No. 14,803, bearing date October 31,

1887, and in Belgium, No. 88,846, dated No-` rangement of which this inventions relates,

consists of one or more endless bands or belts of wire, rope, iron, or steel links or other suitable contrivances', which bands or belts pass or work over two or more series of pulleys, wheels, or drums, to one of which series a rotary motion is given by means of an engine Attached to the outer face of the said bands or belts is a continuous succession of pans, molds, shapes, or fiat plates with upstanding side edges for the reception of the molten material. The said pans, molds, shapes, or plates which are formed of any suitable material, preferably cast-iron, are by preference made in more than one piece or section, the pieces or sections to prevent injury from expansion or contraction being fitted together, as will be well understood by reference to the accompanying drawings. rlhe before-mentioned endless bands or belts are so arranged that when traveling the upper portion thereof will, after the pans, molds, shapes, or plates have received the molten material, dip into a reservoir of water, taking with it the said pans, molds, shapes, or plates, whereby the latter and their contents are cooled on their journey to the series of pulleys,whee1s, or drums at t-he delivery end. The said reservoir is supplied with a continuous flow of water, and this is by preference suitable channels being provided for the esj cape of the overflow.

I will now proceed ,to refer to the accompanying drawings, from which the nature of my said invention willbe more clearly understood.'

The same letters of reference indicate like parts in all the figures.

Figure 1 is a longitudinal view of an apparatus constructed and arranged in accordance with this invention. Figs. 1a and 1b show thc gearing for adjusting the distance between the pulley-wheels. Fig. 2 is a transverse section of one form of pan, mold, or shape. Figs. 8 and 4. are respectively longitudinal section and top views of three pans, molds, or shapes secured in position on the bands or belts, which are shown in this instance as composed of links. Figs. 5 and 6 are top views of detached pans, molds, or shapes. Figs. 7 and 8 show modifications of the arrangements shown in Figs. 3, 4, 5, and 6, and in which flat plates are substituted for the hollow pans.

A A are the endless bands or belts.

C is a series of pulleys, wheels, or drums,

over which one bend or loop of each endless band or belt passes, and the shaft of the said series of pulleys, wheels, or drums is driven through the medium of the driving-shaft B.

E is a series of pulleys, wheels, or drums, over which the other bend or loop of each endless band or belt passes.

D is a water-reservoir, which is shown in section.

F is a channel or runner, through which the molten slag, scoria, or other, materials flow and thence fall into the pans, molds, or shapes I, which are fixed on the endless bands or belts A, and are each provided at one side with a lateral flange or projection I2, which overlaps the edge or rim of the adjacent side of the next pan, and thus prevents the slag from running between the ends of the pans as they pass under the channel F.

F is a receptacle, into which the cooled ma- IOO terial is discharged from the said pans, molds, or shapes as the bands or belts travel round the series of pulleys or wheels E.

G are rollers or pulleys, serving as guides and carriers for the lower portion of the bands or belts.

Il are perforated pipes, from which water issues to assist in cooling the material, and one of which provides a continuous supply to the reservoir D.

The bearings of the shaft of the series of pulleys, wheels, or drums E are connected to one end of the iods or links N, which are atcached or connected at one endto the screw M, which passes through a screw-nut fixed in the worm-wheel L. This wheel gears into a worm, which is fixed on the shaft J, mounted on a bracket. The said screw-n ut and wormwheel L are arranged on the screw M, which passes through the said bracket. By turning' the shaft and worm J, and thereby actuating the worm-wheel L, the axle of the shaft of the pulleys, wheels, or drums E is caused to slide one way or the other in suitable bearings, whereby the distance between the two series 0f pulleys, wheels, or drums C and E is lengthenedor shortened, as required. This admits of the easy adjustment of the bands or belts.

The arrangement of mechanism, which is illustrated by Figs. lA and 1b, will be found convenient for elfecting the desired object; but it is not intended te restrict this invention to the use of the same, as many other simple mechanical arrangements will be found suitable for the purpose.

An essential feature of my invention is that the pans, molds, or shapes are in some cases made in more than one piece or section, inasmuch as I have found that if the pans are made in one piece they are liable to warp and crack with the heat; whereas if they are composed of several pieces there is not the same liability to destruction.

Fig. 2 is a transverse section of one form of pan, mold, or shape which is suitable for the purpose of this invention, and which is composed of sections secured together by suitable bolts or rivets passing through the ears er lugs I.

Figs. 3 and l are respectively longitudinal section and top view of three pans, molds, or shapes secured in position on the bands or belts, which are here shown composed of links. Figs. 5 and G are top views of detached pans, molds, or shapes, Fig. 5 showing a pan composed of four sections, while Fig. (5 shows a pan composed of but two sections.

In Figs. 7 and S a modification of the above arrangement is shown, in which .flat plates are substituted for hollow pans, and when the same are employed the melted slag, after it is cooled, forms a continuous cake or band on the plates, which breaks up into pieces as the plates pass over the pulleys E, each of said plates having a iiange or rabbet I?, upon which rests the adjacent end of the next plate in order to insure close joints.

The action of the apparatus is as follows: The endless bands or belts A are caused to travel in the direction indicated by the arrow a, and at a portion of their journeyT they are arranged to dip with the pans, molds, or shapes, which have been iilled or partially filled with the molten slag, scoria, or other material flowing from the channel or runner F into the reservoir D, whereby the said pans, molds, or shapes and the contents thereof are cooled as the bands or belts pass over the series of pulleys, wheels, or d ruins E. Thepans, molds, or shapes are tilted and turned over and the contents thereof discharged or delivered into the receptacle F.

That I claim isl. The combination, with the endless carrier or conveyer, of a number of pans secured thereto, each pan being divided into two or more sections and the several sect-ions of each pan being rigidly riveted or bolted together, whereby the said pans may expand and contract under changes of temperature without fracturing, substantially as set forth.

2. The combination, with the carrieror conveycr, of pans or molds for the reception of the molten metal, secured thereto, and each being divided longitudinally7 and transversely and the sections secured rigidly together, substantially as set forth.

The combination` with the carrier or conveyer, of pans 0r molds for the reception of molten metal, each being completely divided longitudinally and transversely and the sec tions thereof having the ears or flanges I at intervals along' the joints riveted together, substantially as and for the purposes set forth.

l. The combina-tion, with the endless earrier, of a water-trough, pulleys arranged to guide said carrier through said trough, molds 0r pans secured to said carrier, and a spraypipe arranged lengthwise of said carrier and adapted to discharge into said pans or molds, substantially as set forth.

lVILLlAM HAVDON.

XVitnesses:

Wn. Ponnrrr INcHAn,

C'. E., dft'ddleshrougl. T. Bannarl,

Clerk to Fred Brewster, S'olief/or.

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